Computed tomography in adrenal tumors

Computed tomography (CT) was used to evaluate 26 patients with a variety of adrenal lesions. Surgical proof was available in 22 patients and clinical confirmation with a variety of other studies in the other four patients. Nine patients ahd aldosterone-producing adrenal adenomas and CT correctly identified seven. Four patients had cortisol-producing adenomas and five patients had cortisol-producing carcinomas; CT identified each of these tumors. Prominent but normal shaped glands were seen in each of the four patients with adrenal hyperplasia. Adrenal metastases from malignant melanoma in two patients were identified. Only one of two pheochromocytomas in two patients could be seen on CT. CT is a noninvasive method of localizing adrenal tumors and may be helpful in distinguishing adenomas from adrenal hyperplasia.
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